2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vnet/lisp-cp/control.h>
17 #include <vnet/lisp-cp/packets.h>
18 #include <vnet/lisp-cp/lisp_msg_serdes.h>
19 #include <vnet/lisp-gpe/lisp_gpe.h>
21 /* Stores mapping in map-cache. It does NOT program data plane forwarding for
22 * remote/learned mappings. */
24 vnet_lisp_add_del_mapping (vnet_lisp_add_del_mapping_args_t * a,
25 u32 * map_index_result)
27 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
28 u32 mi, * map_indexp, map_index, i;
32 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->deid);
35 /* TODO check if overwriting and take appropriate actions */
36 if (mi != GID_LOOKUP_MISS)
38 clib_warning("eid %U found in the eid-table", format_ip_address,
40 return VNET_API_ERROR_VALUE_EXIST;
43 pool_get(lcm->mapping_pool, m);
45 m->locator_set_index = a->locator_set_index;
49 map_index = m - lcm->mapping_pool;
50 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->deid, map_index,
53 if (pool_is_free_index(lcm->locator_set_pool, a->locator_set_index))
55 clib_warning("Locator set with index %d doesn't exist",
56 a->locator_set_index);
57 return VNET_API_ERROR_INVALID_VALUE;
60 /* add eid to list of eids supported by locator-set */
61 vec_validate (lcm->locator_set_to_eids, a->locator_set_index);
62 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids,
63 a->locator_set_index);
64 vec_add1(eid_indexes[0], map_index);
69 vec_add1(lcm->local_mappings_indexes, map_index);
71 map_index_result[0] = map_index;
75 if (mi == GID_LOOKUP_MISS)
77 clib_warning("eid %U not found in the eid-table", format_ip_address,
79 return VNET_API_ERROR_INVALID_VALUE;
82 /* clear locator-set to eids binding */
83 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids,
84 a->locator_set_index);
85 for (i = 0; i < vec_len(eid_indexes[0]); i++)
87 map_indexp = vec_elt_at_index(eid_indexes[0], i);
88 if (map_indexp[0] == mi)
91 vec_del1(eid_indexes[0], i);
93 /* remove local mark if needed */
94 m = pool_elt_at_index(lcm->mapping_pool, mi);
98 for (k = 0; k < vec_len(lcm->local_mappings_indexes); k++)
100 lm_indexp = vec_elt_at_index(lcm->local_mappings_indexes, k);
101 if (lm_indexp[0] == mi)
104 vec_del1(lcm->local_mappings_indexes, k);
108 /* remove tunnel ??? */
111 /* remove mapping from dictionary */
112 gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->deid, 0, 0);
113 pool_put_index (lcm->mapping_pool, mi);
119 /* Stores mapping in map-cache and programs data plane for local mappings. */
121 vnet_lisp_add_del_local_mapping (vnet_lisp_add_del_mapping_args_t * a,
122 u32 * map_index_result)
124 uword * table_id, * refc;
126 vnet_lisp_gpe_add_del_iface_args_t _ai, *ai = &_ai;
127 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main ();
129 /* store/remove mapping from map-cache */
130 rv = vnet_lisp_add_del_mapping (a, map_index_result);
134 table_id = hash_get(lcm->table_id_by_vni, /* default for now */ 0);
138 clib_warning ("vni %d not associated to a vrf!", 0);
139 return VNET_API_ERROR_INVALID_VALUE;
142 refc = hash_get(lcm->dp_if_refcount_by_vni, 0);
144 /* enable/disable data-plane interface */
147 /* create interface or update refcount */
151 ai->vni = 0; /* default for now, pass vni as parameter */
152 ai->table_id = table_id[0];
153 vnet_lisp_gpe_add_del_iface (ai, 0);
155 hash_set(lcm->dp_if_refcount_by_vni, 0 /* table_id */, 1);
164 /* since this is a remove for an existing eid, the iface should exist */
168 /* remove iface if needed */
172 ai->vni = 0; /* default for now, pass vni as parameter */
173 ai->table_id = table_id[0];
174 vnet_lisp_gpe_add_del_iface (ai, 0);
181 static clib_error_t *
182 lisp_add_del_local_eid_command_fn (vlib_main_t * vm, unformat_input_t * input,
183 vlib_cli_command_t * cmd)
185 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
186 unformat_input_t _line_input, * line_input = &_line_input;
189 ip_prefix_t * prefp = &gid_address_ippref(&eid);
190 gid_address_t * eids = 0;
191 clib_error_t * error = 0;
192 u8 * locator_set_name;
193 u32 locator_set_index = 0, map_index = 0;
195 vnet_lisp_add_del_mapping_args_t _a, * a = &_a;
197 gid_address_type (&eid) = IP_PREFIX;
199 /* Get a line of input. */
200 if (! unformat_user (input, unformat_line_input, line_input))
203 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
205 if (unformat (line_input, "add"))
207 else if (unformat (line_input, "del"))
209 else if (unformat (line_input, "eid %U", unformat_ip_prefix, prefp))
213 else if (unformat (line_input, "locator-set %_%v%_", &locator_set_name))
215 p = hash_get_mem(lcm->locator_set_index_by_name, locator_set_name);
218 error = clib_error_return(0, "locator-set %s doesn't exist",
222 locator_set_index = p[0];
226 error = unformat_parse_error(line_input);
231 /* XXX treat batch configuration */
234 a->locator_set_index = locator_set_index;
237 vnet_lisp_add_del_local_mapping (a, &map_index);
243 VLIB_CLI_COMMAND (lisp_add_del_local_eid_command) = {
244 .path = "lisp eid-table",
245 .short_help = "lisp eid-table add/del eid <eid> locator-set <locator-set>",
246 .function = lisp_add_del_local_eid_command_fn,
249 static clib_error_t *
250 lisp_show_local_eid_table_command_fn (vlib_main_t * vm,
251 unformat_input_t * input,
252 vlib_cli_command_t * cmd)
254 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
257 vlib_cli_output (vm, "%=20s%=16s", "EID", "Locator");
258 pool_foreach (mapit, lcm->mapping_pool,
261 locator_set_t * ls = pool_elt_at_index (lcm->locator_set_pool,
262 mapit->locator_set_index);
263 vlib_cli_output (vm, "%-16U%16v", format_gid_address, &mapit->eid,
271 VLIB_CLI_COMMAND (lisp_cp_show_local_eid_table_command) = {
272 .path = "show lisp eid-table",
273 .short_help = "Shows local EID table",
274 .function = lisp_show_local_eid_table_command_fn,
277 /* cleans locator to locator-set data and removes locators not part of
280 clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi)
282 u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes;
283 locator_set_t * ls = pool_elt_at_index(lcm->locator_set_pool, lsi);
284 for (i = 0; i < vec_len(ls->locator_indices); i++)
286 loc_indexp = vec_elt_at_index(ls->locator_indices, i);
287 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
289 for (j = 0; j < vec_len(ls_indexes[0]); j++)
291 ls_indexp = vec_elt_at_index(ls_indexes[0], j);
292 if (ls_indexp[0] == lsi)
296 /* delete index for removed locator-set*/
297 vec_del1(ls_indexes[0], j);
299 /* delete locator if it's part of no locator-set */
300 if (vec_len (ls_indexes[0]) == 0)
301 pool_put_index(lcm->locator_pool, loc_indexp[0]);
305 vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a,
308 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
310 locator_t * loc, * itloc;
311 uword _p = (u32)~0, * p = &_p;
312 u32 loc_index, ls_index, ** ls_indexes;
317 /* check if overwrite */
319 p = hash_get_mem(lcm->locator_set_index_by_name, a->name);
324 if (p && p[0] != (u32)~0)
326 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
329 clib_warning("locator-set %d to be overwritten doesn't exist!",
334 /* clean locator to locator-set vectors and remove locators if
335 * they're not part of another locator-set */
336 clean_locator_to_locator_set (lcm, p[0]);
338 /* remove locator indices from locator set */
339 vec_free(ls->locator_indices);
346 /* new locator-set */
349 pool_get(lcm->locator_set_pool, ls);
350 ls_index = ls - lcm->locator_set_pool;
354 ls->name = vec_dup(a->name);
356 if (!lcm->locator_set_index_by_name)
357 lcm->locator_set_index_by_name = hash_create_vec(
358 /* size */0, sizeof(ls->name[0]), sizeof(uword));
359 hash_set_mem(lcm->locator_set_index_by_name, ls->name, ls_index);
361 /* mark as local locator-set */
362 vec_add1(lcm->local_locator_set_indexes, ls_index);
364 ls->local = a->local;
366 ls_result[0] = ls_index;
369 /* allocate locators */
370 vec_foreach (itloc, a->locators)
372 pool_get(lcm->locator_pool, loc);
374 loc_index = loc - lcm->locator_pool;
376 vec_add1(ls->locator_indices, loc_index);
378 vec_validate (lcm->locator_to_locator_sets, loc_index);
379 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
381 vec_add1(ls_indexes[0], ls_index);
386 /* find locator-set */
389 p = hash_get_mem(lcm->locator_set_index_by_name, a->name);
392 clib_warning("locator-set %v doesn't exists", a->name);
399 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
402 clib_warning("locator-set with index %d doesn't exists", p[0]);
405 // /* XXX what happens when a mapping is configured to use the loc-set ? */
406 // if (vec_len (vec_elt_at_index(lcm->locator_set_to_eids, p[0])) != 0)
408 // clib_warning ("Can't delete a locator that supports a mapping!");
412 if (vec_len(lcm->locator_set_to_eids) != 0)
414 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, p[0]);
415 if (vec_len(eid_indexes[0]) != 0)
417 clib_warning ("Can't delete a locator that supports a mapping!");
422 /* clean locator to locator-sets data */
423 clean_locator_to_locator_set (lcm, p[0]);
429 vec_foreach_index(it, lcm->local_locator_set_indexes)
431 lsi = vec_elt(lcm->local_locator_set_indexes, it);
434 vec_del1(lcm->local_locator_set_indexes, it);
438 hash_unset_mem(lcm->locator_set_index_by_name, ls->name);
441 pool_put(lcm->locator_set_pool, ls);
447 uword *vnet_lisp_get_locator(vnet_lisp_add_del_locator_set_args_t * a,
450 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
455 /* find locator-set */
458 p = hash_get_mem(lcm->locator_set_index_by_name, a->name);
469 vnet_lisp_add_del_locator_set_name (vnet_lisp_add_del_locator_set_args_t * a,
472 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
474 uword _p = (u32)~0, * p = &_p;
476 u32 **eid_indexes = NULL;
479 ASSERT(ls_result != NULL);
481 p = vnet_lisp_get_locator(a, p);
486 if (p && p[0] != (u32)~0)
488 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
491 clib_warning("locator-set %d to be overwritten doesn't exist!",
493 return VNET_API_ERROR_UNSPECIFIED;
496 /* clean locator to locator-set vectors and remove locators if
497 * they're not part of another locator-set */
498 clean_locator_to_locator_set (lcm, p[0]);
500 /* remove locator indices from locator set */
501 vec_free(ls->locator_indices);
508 /* new locator-set */
511 pool_get(lcm->locator_set_pool, ls);
512 ls_index = ls - lcm->locator_set_pool;
516 ls->name = vec_dup(a->name);
518 if (!lcm->locator_set_index_by_name)
519 lcm->locator_set_index_by_name = hash_create_vec(
520 /* size */0, sizeof(ls->name[0]), sizeof(uword));
521 hash_set_mem(lcm->locator_set_index_by_name, ls->name, ls_index);
523 /* mark as local locator-set */
524 vec_add1(lcm->local_locator_set_indexes, ls_index);
526 ls->local = a->local;
527 ls->locator_indices = NULL;
529 ls_result[0] = ls_index;
536 clib_warning("locator-set %v doesn't exists", a->name);
537 return VNET_API_ERROR_INVALID_ARGUMENT;
540 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
543 clib_warning("locator-set with index %d doesn't exists", p[0]);
544 return VNET_API_ERROR_INVALID_ARGUMENT;
547 if (vec_len(lcm->locator_set_to_eids) != 0)
549 eid_indexes = vec_elt_at_index(lcm->locator_set_to_eids, p[0]);
550 if (vec_len(eid_indexes[0]) != 0)
552 clib_warning ("Can't delete a locator that supports a mapping!");
557 /* clean locator to locator-sets data */
558 clean_locator_to_locator_set (lcm, p[0]);
564 vec_foreach_index(it, lcm->local_locator_set_indexes)
566 lsi = vec_elt(lcm->local_locator_set_indexes, it);
569 vec_del1(lcm->local_locator_set_indexes, it);
573 hash_unset_mem(lcm->locator_set_index_by_name, ls->name);
576 pool_put(lcm->locator_set_pool, ls);
582 vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t *a,
585 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
586 locator_set_t *ls = NULL;
587 locator_t *loc = NULL, *itloc = NULL;
588 uword _p = (u32)~0, * p = &_p;
589 u32 loc_index = ~0, ls_index = ~0, *locit = NULL, **ls_indexes = NULL;
593 ASSERT(ls_result != NULL);
595 p = vnet_lisp_get_locator(a, p);
597 clib_warning("locator-set %v doesn't exists", a->name);
598 return VNET_API_ERROR_INVALID_ARGUMENT;
605 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
608 clib_warning("locator-set %d to be overwritten doesn't exist!",
610 return VNET_API_ERROR_INVALID_ARGUMENT;
616 /* allocate locators */
618 pool_get(lcm->locator_pool, loc);
620 loc_index = loc - lcm->locator_pool;
622 vec_add1(ls->locator_indices, loc_index);
624 vec_validate (lcm->locator_to_locator_sets, loc_index);
625 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
627 vec_add1(ls_indexes[0], ls_index);
631 ls = pool_elt_at_index(lcm->locator_set_pool, p[0]);
634 clib_warning("locator-set with index %d doesn't exists", p[0]);
635 return VNET_API_ERROR_INVALID_ARGUMENT;
642 vec_foreach (locit, ls->locator_indices)
644 loc = pool_elt_at_index(lcm->locator_pool, locit[0]);
645 if (loc->local && loc->sw_if_index == itloc->sw_if_index)
647 ls_indexes = vec_elt_at_index(lcm->locator_to_locator_sets,
649 pool_put_index(lcm->locator_pool, locit[0]);
650 vec_del1(ls->locator_indices, i);
651 vec_del1(ls_indexes[0], ls_index);
660 static clib_error_t *
661 lisp_add_del_locator_set_command_fn (vlib_main_t * vm, unformat_input_t * input,
662 vlib_cli_command_t * cmd)
664 lisp_gpe_main_t * lgm = &lisp_gpe_main;
665 vnet_main_t * vnm = lgm->vnet_main;
666 unformat_input_t _line_input, * line_input = &_line_input;
668 clib_error_t * error = 0;
669 u8 * locator_set_name = 0;
670 locator_t locator, * locators = 0;
671 vnet_lisp_add_del_locator_set_args_t _a, * a = &_a;
674 memset(&locator, 0, sizeof(locator));
675 memset(a, 0, sizeof(a[0]));
677 /* Get a line of input. */
678 if (! unformat_user (input, unformat_line_input, line_input))
681 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
683 if (unformat (line_input, "add %_%v%_", &locator_set_name))
685 else if (unformat (line_input, "del %_%v%_", &locator_set_name))
687 else if (unformat (line_input, "iface %U p %d w %d",
688 unformat_vnet_sw_interface, vnm, &locator.sw_if_index,
689 &locator.priority, &locator.weight))
692 vec_add1(locators, locator);
696 error = unformat_parse_error(line_input);
701 a->name = locator_set_name;
702 a->locators = locators;
706 vnet_lisp_add_del_locator_set(a, &ls_index);
710 vec_free(locator_set_name);
714 VLIB_CLI_COMMAND (lisp_cp_add_del_locator_set_command) = {
715 .path = "lisp locator-set",
716 .short_help = "lisp locator-set add/del <name> iface <iface-name> "
717 "<priority> <weight>",
718 .function = lisp_add_del_locator_set_command_fn,
721 static clib_error_t *
722 lisp_cp_show_locator_sets_command_fn (vlib_main_t * vm,
723 unformat_input_t * input,
724 vlib_cli_command_t * cmd)
726 locator_set_t * lsit;
729 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
731 vlib_cli_output (vm, "%=20s%=16s%=16s%=16s", "Locator-set", "Locator",
732 "Priority", "Weight");
733 pool_foreach (lsit, lcm->locator_set_pool,
736 msg = format (msg, "%-16v", lsit->name);
737 vec_foreach (locit, lsit->locator_indices)
739 loc = pool_elt_at_index (lcm->locator_pool, locit[0]);
741 msg = format (msg, "%16d%16d%16d", loc->sw_if_index, loc->priority,
744 msg = format (msg, "%16U%16d%16d", format_gid_address, &loc->address,
745 loc->priority, loc->weight);
747 vlib_cli_output (vm, "%v", msg);
753 VLIB_CLI_COMMAND (lisp_cp_show_locator_sets_command) = {
754 .path = "show lisp locator-set",
755 .short_help = "Shows locator-sets",
756 .function = lisp_cp_show_locator_sets_command_fn,
760 vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a)
762 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
768 vec_foreach(addr, lcm->map_resolvers)
770 if (!ip_address_cmp (addr, &a->address))
772 clib_warning("map-resolver %U already exists!", format_ip_address,
777 vec_add1(lcm->map_resolvers, a->address);
781 for (i = 0; i < vec_len(lcm->map_resolvers); i++)
783 addr = vec_elt_at_index(lcm->map_resolvers, i);
784 if (!ip_address_cmp (addr, &a->address))
786 vec_delete(lcm->map_resolvers, 1, i);
794 static clib_error_t *
795 lisp_add_del_map_resolver_command_fn (vlib_main_t * vm,
796 unformat_input_t * input,
797 vlib_cli_command_t * cmd)
799 unformat_input_t _line_input, * line_input = &_line_input;
801 ip_address_t ip_addr;
802 clib_error_t * error = 0;
803 vnet_lisp_add_del_map_resolver_args_t _a, * a = &_a;
805 /* Get a line of input. */
806 if (! unformat_user (input, unformat_line_input, line_input))
809 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
811 if (unformat (line_input, "add"))
813 else if (unformat (line_input, "del"))
815 else if (unformat (line_input, "%U", unformat_ip_address, &ip_addr))
819 error = unformat_parse_error(line_input);
824 a->address = ip_addr;
825 vnet_lisp_add_del_map_resolver (a);
831 VLIB_CLI_COMMAND (lisp_add_del_map_resolver_command) = {
832 .path = "lisp map-resolver",
833 .short_help = "lisp map-resolver add/del <ip_address>",
834 .function = lisp_add_del_map_resolver_command_fn,
837 /* Statistics (not really errors) */
838 #define foreach_lisp_cp_lookup_error \
840 _(MAP_REQUESTS_SENT, "map-request sent")
842 static char * lisp_cp_lookup_error_strings[] = {
843 #define _(sym,string) string,
844 foreach_lisp_cp_lookup_error
850 #define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym,
851 foreach_lisp_cp_lookup_error
853 LISP_CP_LOOKUP_N_ERROR,
854 } lisp_cp_lookup_error_t;
858 LISP_CP_LOOKUP_NEXT_DROP,
859 LISP_CP_LOOKUP_NEXT_IP4_LOOKUP,
860 LISP_CP_LOOKUP_NEXT_IP6_LOOKUP,
861 LISP_CP_LOOKUP_N_NEXT,
862 } lisp_cp_lookup_next_t;
866 gid_address_t dst_eid;
867 ip4_address_t map_resolver_ip;
868 } lisp_cp_lookup_trace_t;
871 format_lisp_cp_lookup_trace (u8 * s, va_list * args)
873 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
874 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
875 lisp_cp_lookup_trace_t * t = va_arg (*args, lisp_cp_lookup_trace_t *);
877 s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U",
878 format_ip_address, &t->map_resolver_ip, format_gid_address,
884 ip_fib_lookup_with_table (lisp_cp_main_t * lcm, u32 fib_index,
887 if (ip_addr_version (dst) == IP4)
888 return ip4_fib_lookup_with_table (lcm->im4, fib_index, &ip_addr_v4(dst),
891 return ip6_fib_lookup_with_table (lcm->im6, fib_index, &ip_addr_v6(dst));
895 get_local_iface_ip_for_dst (lisp_cp_main_t *lcm, ip_address_t * dst,
899 ip_adjacency_t * adj;
900 ip_interface_address_t * ia = 0;
901 ip_lookup_main_t * lm;
902 ip4_address_t * l4 = 0;
903 ip6_address_t * l6 = 0;
905 lm = ip_addr_version (dst) == IP4 ?
906 &lcm->im4->lookup_main : &lcm->im6->lookup_main;
908 adj_index = ip_fib_lookup_with_table (lcm, 0, dst);
909 adj = ip_get_adjacency (lm, adj_index);
911 if (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP)
913 ia = pool_elt_at_index(lm->if_address_pool, adj->if_address_index);
914 if (ip_addr_version(dst) == IP4)
916 l4 = ip_interface_address_get_address (lm, ia);
920 l6 = ip_interface_address_get_address (lm, ia);
923 else if (adj->lookup_next_index == IP_LOOKUP_NEXT_REWRITE)
925 /* find sw_if_index in rewrite header */
926 u32 sw_if_index = adj->rewrite_header.sw_if_index;
928 /* find suitable address */
929 if (ip_addr_version(dst) == IP4)
931 /* find the first ip address */
932 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
933 sw_if_index, 1 /* unnumbered */,
935 l4 = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
941 /* find the first ip address */
942 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
943 sw_if_index, 1 /* unnumbered */,
945 l6 = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
952 clib_warning("Can't find local local interface ip for dst %U",
953 format_ip_address, dst);
959 ip_addr_v4(sloc).as_u32 = l4->as_u32;
960 ip_addr_version(sloc) = IP4;
964 clib_memcpy (&ip_addr_v6(sloc), l6, sizeof(*l6));
965 ip_addr_version(sloc) = IP6;
969 clib_warning("Can't find local interface addr for dst %U",
970 format_ip_address, dst);
975 static ip_address_t *
976 build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set)
983 ip_interface_address_t * ia = 0;
984 ip_address_t * rlocs = 0;
985 ip_address_t _rloc, * rloc = &_rloc;
987 for (i = 0; i < vec_len(loc_set->locator_indices); i++)
989 loc_indexp = vec_elt_at_index(loc_set->locator_indices, i);
990 loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]);
992 ip_addr_version(rloc) = IP4;
993 /* Add ipv4 locators first TODO sort them */
994 foreach_ip_interface_address (&lcm->im4->lookup_main, ia,
995 loc->sw_if_index, 1 /* unnumbered */,
997 l4 = ip_interface_address_get_address (&lcm->im4->lookup_main, ia);
998 ip_addr_v4(rloc) = l4[0];
999 vec_add1(rlocs, rloc[0]);
1002 ip_addr_version(rloc) = IP6;
1003 /* Add ipv6 locators */
1004 foreach_ip_interface_address (&lcm->im6->lookup_main, ia,
1005 loc->sw_if_index, 1 /* unnumbered */,
1007 l6 = ip_interface_address_get_address (&lcm->im6->lookup_main, ia);
1008 ip_addr_v6(rloc) = l6[0];
1009 vec_add1(rlocs, rloc[0]);
1015 static vlib_buffer_t *
1016 build_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
1017 gid_address_t * seid, gid_address_t * deid,
1018 locator_set_t * loc_set, u8 is_smr_invoked,
1019 u64 *nonce_res, u32 * bi_res)
1023 ip_address_t * mr_ip, sloc;
1024 ip_address_t * rlocs = 0;
1026 if (vlib_buffer_alloc (vm, &bi, 1) != 1)
1028 clib_warning ("Can't allocate buffer for Map-Request!");
1032 b = vlib_get_buffer (vm, bi);
1034 /* leave some space for the encap headers */
1035 vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN);
1038 rlocs = build_itr_rloc_list (lcm, loc_set);
1041 lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked, nonce_res);
1043 /* push ecm: udp-ip-lisp */
1044 lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid);
1046 /* get map-resolver ip XXX use first*/
1047 mr_ip = vec_elt_at_index(lcm->map_resolvers, 0);
1049 /* get local iface ip to use in map-request XXX fib 0 for now*/
1050 get_local_iface_ip_for_dst (lcm, mr_ip, &sloc);
1052 /* push outer ip header */
1053 pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, &sloc,
1064 send_encapsulated_map_request (vlib_main_t * vm, lisp_cp_main_t *lcm,
1065 gid_address_t * seid, gid_address_t * deid,
1068 u32 next_index, bi = 0, * to_next, map_index;
1072 locator_set_t * loc_set;
1074 pending_map_request_t * pmr;
1076 /* get locator-set for seid */
1077 map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid);
1078 if (map_index == ~0)
1080 clib_warning("No local mapping found in eid-table for %U!",
1081 format_gid_address, seid);
1085 map = pool_elt_at_index (lcm->mapping_pool, map_index);
1089 clib_warning("Mapping found for src eid %U is not marked as local!",
1090 format_gid_address, seid);
1093 loc_set = pool_elt_at_index (lcm->locator_set_pool, map->locator_set_index);
1095 /* build the encapsulated map request */
1096 b = build_encapsulated_map_request (vm, lcm, seid, deid, loc_set,
1097 is_smr_invoked, &nonce, &bi);
1102 vnet_buffer(b)->sw_if_index[VLIB_TX] = ~0;
1103 next_index = (ip_prefix_version(&gid_address_ippref(seid)) == IP4) ?
1104 ip4_lookup_node.index : ip6_lookup_node.index;
1106 f = vlib_get_frame_to_node (vm, next_index);
1108 /* Enqueue the packet */
1109 to_next = vlib_frame_vector_args (f);
1112 vlib_put_frame_to_node (vm, next_index, f);
1114 /* add map-request to pending requests table */
1115 pool_get(lcm->pending_map_requests_pool, pmr);
1116 gid_address_copy (&pmr->src, seid);
1117 gid_address_copy (&pmr->dst, deid);
1118 pmr->src_mapping_index = map_index;
1119 hash_set(lcm->pending_map_requests_by_nonce, nonce,
1120 pmr - lcm->pending_map_requests_pool);
1124 get_src_and_dst (void *hdr, ip_address_t * src, ip_address_t *dst)
1126 ip4_header_t * ip4 = hdr;
1129 if ((ip4->ip_version_and_header_length & 0xF0) == 0x40)
1131 ip_addr_v4(src).as_u32 = ip4->src_address.as_u32;
1132 ip_addr_version(src) = IP4;
1133 ip_addr_v4(dst).as_u32 = ip4->dst_address.as_u32;
1134 ip_addr_version(dst) = IP4;
1139 clib_memcpy (&ip_addr_v6(src), &ip6->src_address, sizeof(ip6->src_address));
1140 ip_addr_version(src) = IP6;
1141 clib_memcpy (&ip_addr_v6(dst), &ip6->dst_address, sizeof(ip6->dst_address));
1142 ip_addr_version(dst) = IP6;
1147 lisp_cp_lookup (vlib_main_t * vm, vlib_node_runtime_t * node,
1148 vlib_frame_t * from_frame)
1150 u32 * from, * to_next_drop;
1151 lisp_cp_main_t *lcm = vnet_lisp_cp_get_main();
1152 u32 pkts_mapped = 0;
1153 uword n_left_from, n_left_to_next_drop;
1155 from = vlib_frame_vector_args (from_frame);
1156 n_left_from = from_frame->n_vectors;
1158 while (n_left_from > 0)
1160 vlib_get_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP,
1161 to_next_drop, n_left_to_next_drop);
1163 while (n_left_from > 0 && n_left_to_next_drop > 0)
1168 gid_address_t src, dst;
1169 ip_prefix_t * spref, * dpref;
1171 gid_address_type (&src) = IP_PREFIX;
1172 spref = &gid_address_ippref(&src);
1173 gid_address_type (&dst) = IP_PREFIX;
1174 dpref = &gid_address_ippref(&dst);
1179 to_next_drop[0] = pi0;
1181 n_left_to_next_drop -= 1;
1183 p0 = vlib_get_buffer (vm, pi0);
1184 p0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP];
1186 /* src/dst eid pair */
1187 ip0 = vlib_buffer_get_current (p0);
1188 get_src_and_dst (ip0, &ip_prefix_addr(spref), &ip_prefix_addr(dpref));
1189 ip_prefix_len(spref) = ip_address_max_len (ip_prefix_version(spref));
1190 ip_prefix_len(dpref) = ip_address_max_len (ip_prefix_version(dpref));
1192 /* send map-request */
1193 send_encapsulated_map_request (vm, lcm, &src, &dst, 0);
1197 if (PREDICT_FALSE(p0->flags & VLIB_BUFFER_IS_TRACED))
1199 lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, p0,
1201 gid_address_copy (&tr->dst_eid, &dst);
1202 clib_memcpy (&tr->map_resolver_ip,
1203 vec_elt_at_index(lcm->map_resolvers, 0),
1204 sizeof(ip_address_t));
1208 vlib_put_next_frame (vm, node, LISP_CP_LOOKUP_NEXT_DROP, n_left_to_next_drop);
1210 vlib_node_increment_counter (vm, node->node_index,
1211 LISP_CP_LOOKUP_ERROR_MAP_REQUESTS_SENT,
1213 return from_frame->n_vectors;
1216 VLIB_REGISTER_NODE (lisp_cp_lookup_node) = {
1217 .function = lisp_cp_lookup,
1218 .name = "lisp-cp-lookup",
1219 .vector_size = sizeof (u32),
1220 .format_trace = format_lisp_cp_lookup_trace,
1221 .type = VLIB_NODE_TYPE_INTERNAL,
1223 .n_errors = LISP_CP_LOOKUP_N_ERROR,
1224 .error_strings = lisp_cp_lookup_error_strings,
1226 .n_next_nodes = LISP_CP_LOOKUP_N_NEXT,
1229 [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop",
1230 [LISP_CP_LOOKUP_NEXT_IP4_LOOKUP] = "ip4-lookup",
1231 [LISP_CP_LOOKUP_NEXT_IP6_LOOKUP] = "ip6-lookup",
1235 /* lisp_cp_input statistics */
1236 #define foreach_lisp_cp_input_error \
1238 _(MAP_REPLIES_RECEIVED, "map-replies received")
1240 static char * lisp_cp_input_error_strings[] = {
1241 #define _(sym,string) string,
1242 foreach_lisp_cp_input_error
1248 #define _(sym,str) LISP_CP_INPUT_ERROR_##sym,
1249 foreach_lisp_cp_input_error
1251 LISP_CP_INPUT_N_ERROR,
1252 } lisp_cp_input_error_t;
1256 LISP_CP_INPUT_NEXT_DROP,
1257 LISP_CP_INPUT_N_NEXT,
1258 } lisp_cp_input_next_t;
1262 gid_address_t dst_eid;
1263 ip4_address_t map_resolver_ip;
1264 } lisp_cp_input_trace_t;
1267 format_lisp_cp_input_trace (u8 * s, va_list * args)
1269 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
1270 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
1271 CLIB_UNUSED(lisp_cp_input_trace_t * t) = va_arg (*args, lisp_cp_input_trace_t *);
1273 s = format (s, "LISP-CP-INPUT: TODO");
1277 ip_interface_address_t *
1278 ip_interface_get_first_interface_address (ip_lookup_main_t *lm, u32 sw_if_index,
1281 vnet_main_t *vnm = vnet_get_main ();
1282 vnet_sw_interface_t * swif = vnet_get_sw_interface (vnm, sw_if_index);
1283 if (loop && swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)
1284 sw_if_index = swif->unnumbered_sw_if_index;
1286 (vec_len((lm)->if_address_pool_index_by_sw_if_index) > (sw_if_index)) ?
1287 vec_elt((lm)->if_address_pool_index_by_sw_if_index, (sw_if_index)) :
1289 return pool_elt_at_index((lm)->if_address_pool, ia);
1293 ip_interface_get_first_ip_addres (ip_lookup_main_t *lm, u32 sw_if_index,
1296 ip_interface_address_t * ia = ip_interface_get_first_interface_address (
1297 lm, sw_if_index, loop);
1298 return ip_interface_address_get_address (lm, ia);
1302 del_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index,
1305 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, * a = &_a;
1306 fwd_entry_t * fe = 0;
1308 memset(a, 0, sizeof(*a));
1310 feip = hash_get(lcm->fwd_entry_by_mapping_index, dst_map_index);
1314 fe = pool_elt_at_index(lcm->fwd_entry_pool, feip[0]);
1316 /* delete dp fwd entry */
1319 a->dlocator = fe->dst_loc;
1320 a->slocator = fe->src_loc;
1321 a->vni = 0; // XXX should be part of mapping/eid
1322 gid_address_copy(&a->deid, &fe->deid);
1324 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
1326 /* delete entry in fwd table */
1327 hash_unset(lcm->fwd_entry_by_mapping_index, dst_map_index);
1328 pool_put(lcm->fwd_entry_pool, fe);
1332 add_fwd_entry (lisp_cp_main_t* lcm, u32 src_map_index, u32 dst_map_index)
1334 mapping_t * src_map, * dst_map;
1335 locator_set_t * dst_ls, * src_ls;
1338 uword * feip = 0, * tidp;
1340 vnet_lisp_gpe_add_del_fwd_entry_args_t _a, * a = &_a;
1342 memset (a, 0, sizeof(*a));
1344 /* remove entry if it already exists */
1345 feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index);
1347 del_fwd_entry (lcm, src_map_index, dst_map_index);
1349 src_map = pool_elt_at_index (lcm->mapping_pool, src_map_index);
1350 dst_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index);
1352 /* XXX simple forwarding policy: first lowest (value) priority locator */
1353 dst_ls = pool_elt_at_index (lcm->locator_set_pool,
1354 dst_map->locator_set_index);
1355 for (i = 0; i < vec_len (dst_ls->locator_indices); i++)
1357 u32 li = vec_elt (dst_ls->locator_indices, i);
1358 locator_t * l = pool_elt_at_index (lcm->locator_pool, li);
1359 if (l->priority < minp && gid_address_type(&l->address) == IP_PREFIX)
1367 src_ls = pool_elt_at_index (lcm->locator_set_pool,
1368 src_map->locator_set_index);
1369 for (i = 0; i < vec_len (src_ls->locator_indices); i++)
1371 u32 li = vec_elt (src_ls->locator_indices, i);
1372 locator_t * sl = pool_elt_at_index (lcm->locator_pool, li);
1374 if (ip_addr_version(&gid_address_ip(&dl->address)) == IP4)
1377 l4 = ip_interface_get_first_ip_addres (&lcm->im4->lookup_main,
1379 1 /* unnumbered */);
1380 ip_addr_v4(&a->slocator) = *l4;
1381 ip_addr_version(&a->slocator) = IP4;
1386 l6 = ip_interface_get_first_ip_addres (&lcm->im6->lookup_main,
1388 1 /* unnumbered */);
1389 ip_addr_v6(&a->slocator) = *l6;
1390 ip_addr_version(&a->slocator) = IP6;
1394 /* insert data plane forwarding entry */
1398 a->dlocator = gid_address_ip(&dl->address);
1402 a->action = dst_map->action;
1405 gid_address_copy (&a->deid, &dst_map->eid);
1406 a->vni = 0; // XXX should be part of mapping/eid
1408 tidp = hash_get(lcm->table_id_by_vni, a->vni);
1411 clib_warning("vni %d not associated to a vrf!", a->vni);
1414 a->table_id = tidp[0];
1417 u8 ipver = ip_prefix_version(&gid_address_ippref(&a->deid));
1418 a->decap_next_index = (ipver == IP4) ?
1419 LISP_GPE_INPUT_NEXT_IP4_INPUT : LISP_GPE_INPUT_NEXT_IP6_INPUT;
1421 vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index);
1423 /* add tunnel to fwd entry table XXX check return value from DP insertion */
1424 pool_get (lcm->fwd_entry_pool, fe);
1425 fe->dst_loc = a->dlocator;
1426 fe->src_loc = a->slocator;
1427 gid_address_copy (&fe->deid, &a->deid);
1428 hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index,
1429 fe - lcm->fwd_entry_pool);
1432 /* return 0 if the two locator sets are identical 1 otherwise */
1434 compare_locators (lisp_cp_main_t *lcm, u32 * old_ls_indexes,
1435 locator_t * new_locators)
1438 locator_t * old_loc, * new_loc;
1440 if (vec_len (old_ls_indexes) != vec_len(new_locators))
1443 for (i = 0; i < vec_len(new_locators); i++)
1445 old_li = vec_elt(old_ls_indexes, i);
1446 old_loc = pool_elt_at_index(lcm->locator_pool, old_li);
1448 new_loc = vec_elt_at_index(new_locators, i);
1450 if (locator_cmp (old_loc, new_loc))
1457 process_map_reply (lisp_cp_main_t * lcm, vlib_buffer_t * b)
1459 u32 len = 0, i, ls_index = 0;
1461 vnet_lisp_add_del_locator_set_args_t _ls_arg, * ls_arg = &_ls_arg;
1462 vnet_lisp_add_del_mapping_args_t _m_args, * m_args = &_m_args;
1463 pending_map_request_t * pmr;
1465 map_reply_hdr_t * mrep_hdr;
1467 u32 dst_map_index, mi;
1470 mrep_hdr = vlib_buffer_get_current (b);
1472 /* Check pending requests table and nonce */
1473 nonce = MREP_NONCE(mrep_hdr);
1474 pmr_index = hash_get(lcm->pending_map_requests_by_nonce, nonce);
1477 clib_warning("No pending map-request entry with nonce %lu!", nonce);
1480 pmr = pool_elt_at_index(lcm->pending_map_requests_pool, pmr_index[0]);
1482 vlib_buffer_pull (b, sizeof(*mrep_hdr));
1484 for (i = 0; i < MREP_REC_COUNT(mrep_hdr); i++)
1486 memset (ls_arg, 0, sizeof(*ls_arg));
1487 memset (m_args, 0, sizeof(*m_args));
1489 h = vlib_buffer_get_current (b);
1490 m_args->ttl = clib_net_to_host_u32 (MAP_REC_TTL(h));
1491 m_args->action = MAP_REC_ACTION(h);
1492 m_args->authoritative = MAP_REC_AUTH(h);
1494 len = lisp_msg_parse_mapping_record (b, &m_args->deid, &ls_arg->locators,
1498 clib_warning ("Failed to parse mapping record!");
1499 vec_free(ls_arg->locators);
1503 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &m_args->deid);
1505 /* if mapping already exists, decide if locators (and forwarding) should
1506 * be updated and be done */
1509 mapping_t * old_map;
1510 locator_set_t * old_ls;
1511 old_map = pool_elt_at_index(lcm->mapping_pool, mi);
1513 /* update mapping attributes */
1514 old_map->action = m_args->action;
1515 old_map->authoritative = m_args->authoritative;
1516 old_map->ttl = m_args->ttl;
1518 old_ls = pool_elt_at_index(lcm->locator_set_pool,
1519 old_map->locator_set_index);
1520 /* if the two locators are not equal, update them and forwarding
1521 * otherwise there's nothing to be done */
1522 if (compare_locators (lcm, old_ls->locator_indices, ls_arg->locators))
1524 /* set locator-set index to overwrite */
1526 ls_arg->index = old_map->locator_set_index;
1527 vnet_lisp_add_del_locator_set (ls_arg, 0);
1528 add_fwd_entry (lcm, pmr->src_mapping_index, mi);
1534 /* add locator-set */
1537 vnet_lisp_add_del_locator_set (ls_arg, &ls_index);
1541 m_args->locator_set_index = ls_index;
1542 vnet_lisp_add_del_mapping (m_args, &dst_map_index);
1544 /* add forwarding tunnel */
1545 add_fwd_entry (lcm, pmr->src_mapping_index, dst_map_index);
1547 vec_free(ls_arg->locators);
1550 /* remove pending map request entry */
1551 hash_unset(lcm->pending_map_requests_by_nonce, nonce);
1552 pool_put(lcm->pending_map_requests_pool, pmr);
1556 process_map_request (vlib_main_t * vm, lisp_cp_main_t * lcm, vlib_buffer_t * b)
1558 map_request_hdr_t * mreq_hdr;
1559 gid_address_t src, dst;
1562 gid_address_t * itr_rlocs = 0;
1564 mreq_hdr = vlib_buffer_get_current (b);
1565 vlib_buffer_pull (b, sizeof(*mreq_hdr));
1567 // nonce = MREQ_NONCE(mreq_hdr);
1569 if (!MREQ_SMR(mreq_hdr)) {
1570 clib_warning("Only SMR Map-Requests supported for now!");
1575 len = lisp_msg_parse_addr (b, &src);
1579 /* for now we don't do anything with the itr's rlocs */
1580 len = lisp_msg_parse_itr_rlocs (b, &itr_rlocs, MREQ_ITR_RLOC_COUNT(mreq_hdr) + 1);
1584 /* parse eid records and send SMR-invoked map-requests */
1585 for (i = 0; i < MREQ_REC_COUNT(mreq_hdr); i++)
1587 memset(&dst, 0, sizeof(dst));
1588 len = lisp_msg_parse_eid_rec (b, &dst);
1591 clib_warning("Can't parse map-request EID-record");
1594 /* send SMR-invoked map-requests */
1595 send_encapsulated_map_request (vm, lcm, &dst, &src, /* invoked */ 1);
1600 lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node,
1601 vlib_frame_t * from_frame)
1603 u32 n_left_from, * from, * to_next_drop;
1604 lisp_msg_type_e type;
1605 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1607 from = vlib_frame_vector_args (from_frame);
1608 n_left_from = from_frame->n_vectors;
1611 while (n_left_from > 0)
1613 u32 n_left_to_next_drop;
1615 vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP,
1616 to_next_drop, n_left_to_next_drop);
1617 while (n_left_from > 0 && n_left_to_next_drop > 0)
1625 to_next_drop[0] = bi0;
1627 n_left_to_next_drop -= 1;
1629 b0 = vlib_get_buffer (vm, bi0);
1631 type = lisp_msg_type(vlib_buffer_get_current (b0));
1634 case LISP_MAP_REPLY:
1635 process_map_reply (lcm, b0);
1637 case LISP_MAP_REQUEST:
1638 process_map_request(vm, lcm, b0);
1641 clib_warning("Unsupported LISP message type %d", type);
1645 b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP];
1647 if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
1653 vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP, n_left_to_next_drop);
1655 return from_frame->n_vectors;
1658 VLIB_REGISTER_NODE (lisp_cp_input_node) = {
1659 .function = lisp_cp_input,
1660 .name = "lisp-cp-input",
1661 .vector_size = sizeof (u32),
1662 .format_trace = format_lisp_cp_input_trace,
1663 .type = VLIB_NODE_TYPE_INTERNAL,
1665 .n_errors = LISP_CP_INPUT_N_ERROR,
1666 .error_strings = lisp_cp_input_error_strings,
1668 .n_next_nodes = LISP_CP_INPUT_N_NEXT,
1671 [LISP_CP_INPUT_NEXT_DROP] = "error-drop",
1676 lisp_cp_init (vlib_main_t *vm)
1678 lisp_cp_main_t * lcm = vnet_lisp_cp_get_main();
1679 clib_error_t * error = 0;
1681 if ((error = vlib_call_init_function (vm, lisp_gpe_init)))
1684 lcm->im4 = &ip4_main;
1685 lcm->im6 = &ip6_main;
1686 lcm->vlib_main = vm;
1687 lcm->vnet_main = vnet_get_main();
1689 gid_dictionary_init (&lcm->mapping_index_by_gid);
1691 /* default vrf mapped to vni 0 */
1692 hash_set(lcm->table_id_by_vni, 0, 0);
1694 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp,
1695 lisp_cp_input_node.index, 1 /* is_ip4 */);
1696 udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6,
1697 lisp_cp_input_node.index, 0 /* is_ip4 */);
1702 VLIB_INIT_FUNCTION(lisp_cp_init);